/* Get cdtext information in p_user_data for track i_track. For disc information i_track is 0. Return the CD-TEXT or NULL if obj is NULL, CD-TEXT information does not exist, or we don't know how to get this implemented. */ cdtext_t * get_cdtext_generic (void *p_user_data) { generic_img_private_t *p_env = p_user_data; uint8_t *p_cdtext_data = NULL; size_t len; if (!p_env) return NULL; if (p_env->b_cdtext_error) return NULL; if (NULL == p_env->cdtext) { p_cdtext_data = read_cdtext_generic (p_env); if (NULL != p_cdtext_data) { len = CDIO_MMC_GET_LEN16(p_cdtext_data)-2; p_env->cdtext = cdtext_init(); if(len <= 0 || 0 != cdtext_data_init (p_env->cdtext, &p_cdtext_data[4], len)) { p_env->b_cdtext_error = true; cdtext_destroy (p_env->cdtext); free(p_env->cdtext); p_env->cdtext = NULL; } free(p_cdtext_data); } } return p_env->cdtext; }
/* Disk and track information for a Nero file are located at the end of the file. This routine extracts that information. FIXME: right now psz_nrg_name is not used. It will be in the future. */ static bool parse_nrg (_img_private_t *p_env, const char *psz_nrg_name, const cdio_log_level_t log_level) { off_t footer_start; off_t size; char *footer_buf = NULL; if (!p_env) return false; size = cdio_stream_stat (p_env->gen.data_source); if (-1 == size) return false; { _footer_t buf; cdio_assert (sizeof (buf) == 12); cdio_stream_seek (p_env->gen.data_source, size - sizeof (buf), SEEK_SET); cdio_stream_read (p_env->gen.data_source, (void *) &buf, sizeof (buf), 1); if (buf.v50.ID == UINT32_TO_BE (NERO_ID)) { cdio_debug ("detected Nero version 5.0 (32-bit offsets) NRG magic"); footer_start = uint32_to_be (buf.v50.footer_ofs); } else if (buf.v55.ID == UINT32_TO_BE (NER5_ID)) { cdio_debug ("detected Nero version 5.5.x (64-bit offsets) NRG magic"); footer_start = uint64_from_be (buf.v55.footer_ofs); } else { cdio_log (log_level, "Image not recognized as either version 5.0 or " "version 5.5.x-6.x type NRG"); return false; } cdio_debug (".NRG footer start = %ld, length = %ld", (long) footer_start, (long) (size - footer_start)); cdio_assert ((size - footer_start) <= 4096); footer_buf = calloc(1, (size_t)(size - footer_start)); cdio_stream_seek (p_env->gen.data_source, footer_start, SEEK_SET); cdio_stream_read (p_env->gen.data_source, footer_buf, (size_t)(size - footer_start), 1); } { int pos = 0; while (pos < size - footer_start) { _chunk_t *chunk = (void *) (footer_buf + pos); uint32_t opcode = UINT32_FROM_BE (chunk->id); bool break_out = false; switch (opcode) { case CUES_ID: /* "CUES" Seems to have sector size 2336 and 150 sector pregap seems to be included at beginning of image. */ case CUEX_ID: /* "CUEX" */ { unsigned entries = UINT32_FROM_BE (chunk->len); _cuex_array_t *_entries = (void *) chunk->data; cdio_assert (p_env->mapping == NULL); cdio_assert ( sizeof (_cuex_array_t) == 8 ); cdio_assert ( UINT32_FROM_BE (chunk->len) % sizeof(_cuex_array_t) == 0 ); entries /= sizeof (_cuex_array_t); if (CUES_ID == opcode) { lsn_t lsn = UINT32_FROM_BE (_entries[0].lsn); unsigned int idx; unsigned int i = 0; cdio_debug ("CUES type image detected" ); /* CUES LSN has 150 pregap include at beginning? -/ cdio_assert (lsn == 0?); */ p_env->is_cues = true; /* HACK alert. */ p_env->gen.i_tracks = 0; p_env->gen.i_first_track = 1; for (idx = 1; idx < entries-1; idx += 2, i++) { lsn_t sec_count; int cdte_format = _entries[idx].addr_ctrl / 16; int cdte_ctrl = _entries[idx].type >> 4; if ( COPY_PERMITTED & cdte_ctrl ) { if (p_env) p_env->tocent[i].flags |= COPY_PERMITTED; } else { if (p_env) p_env->tocent[i].flags &= ~COPY_PERMITTED; } if ( PRE_EMPHASIS & cdte_ctrl ) { if (p_env) p_env->tocent[i].flags |= PRE_EMPHASIS; } else { if (p_env) p_env->tocent[i].flags &= ~PRE_EMPHASIS; } if ( FOUR_CHANNEL_AUDIO & cdte_ctrl ) { if (p_env) p_env->tocent[i].flags |= FOUR_CHANNEL_AUDIO; } else { if (p_env) p_env->tocent[i].flags &= ~FOUR_CHANNEL_AUDIO; } cdio_assert (_entries[idx].track == _entries[idx + 1].track); /* lsn and sec_count*2 aren't correct, but it comes closer on the single example I have: svcdgs.nrg We are picking up the wrong fields and/or not interpreting them correctly. */ switch (cdte_format) { case 0: lsn = UINT32_FROM_BE (_entries[idx].lsn); break; case 1: { #if 0 msf_t msf = (msf_t) _entries[idx].lsn; lsn = cdio_msf_to_lsn(&msf); #else lsn = CDIO_INVALID_LSN; #endif cdio_log (log_level, "untested (i.e. probably wrong) CUE MSF code"); break; } default: lsn = CDIO_INVALID_LSN; cdio_log(log_level, "unknown cdte_format %d", cdte_format); } sec_count = UINT32_FROM_BE (_entries[idx + 1].lsn); _register_mapping (p_env, lsn, sec_count*2, (lsn+CDIO_PREGAP_SECTORS) * M2RAW_SECTOR_SIZE, M2RAW_SECTOR_SIZE, TRACK_FORMAT_XA, true); } } else { lsn_t lsn = UINT32_FROM_BE (_entries[0].lsn); unsigned int idx; unsigned int i = 0; cdio_debug ("CUEX type image detected"); /* LSN must start at -150 (LBA 0)? */ cdio_assert (lsn == -150); for (idx = 2; idx < entries; idx += 2, i++) { lsn_t sec_count; int cdte_format = _entries[idx].addr_ctrl >> 4; int cdte_ctrl = _entries[idx].type >> 4; if ( COPY_PERMITTED & cdte_ctrl ) { if (p_env) p_env->tocent[i].flags |= COPY_PERMITTED; } else { if (p_env) p_env->tocent[i].flags &= ~COPY_PERMITTED; } if ( PRE_EMPHASIS & cdte_ctrl ) { if (p_env) p_env->tocent[i].flags |= PRE_EMPHASIS; } else { if (p_env) p_env->tocent[i].flags &= ~PRE_EMPHASIS; } if ( FOUR_CHANNEL_AUDIO & cdte_ctrl ) { if (p_env) p_env->tocent[i].flags |= FOUR_CHANNEL_AUDIO; } else { if (p_env) p_env->tocent[i].flags &= ~FOUR_CHANNEL_AUDIO; } /* extractnrg.pl has cdte_format for LBA's 0, and for MSF 1. ??? FIXME: Should decode as appropriate for cdte_format. */ cdio_assert ( cdte_format == 0 || cdte_format == 1 ); cdio_assert (_entries[idx].track != _entries[idx + 1].track); lsn = UINT32_FROM_BE (_entries[idx].lsn); sec_count = UINT32_FROM_BE (_entries[idx + 1].lsn); _register_mapping (p_env, lsn, sec_count - lsn, (lsn + CDIO_PREGAP_SECTORS)*M2RAW_SECTOR_SIZE, M2RAW_SECTOR_SIZE, TRACK_FORMAT_XA, true); } } break; } case DAOX_ID: /* "DAOX" */ case DAOI_ID: /* "DAOI" */ { _daox_t *_xentries = NULL; _daoi_t *_ientries = NULL; _dao_array_common_t *_dao_array_common = NULL; _dao_common_t *_dao_common = (void *) chunk->data; int disc_mode = _dao_common->unknown[1]; track_format_t track_format; int i; /* We include an extra 0 byte so these can be used as C strings.*/ p_env->psz_mcn = calloc(1, CDIO_MCN_SIZE+1); memcpy(p_env->psz_mcn, &(_dao_common->psz_mcn), CDIO_MCN_SIZE); p_env->psz_mcn[CDIO_MCN_SIZE] = '\0'; if (DAOX_ID == opcode) { _xentries = (void *) chunk->data; p_env->dtyp = _xentries->track_info[0].common.unknown[2]; } else { _ientries = (void *) chunk->data; p_env->dtyp = _ientries->track_info[0].common.unknown[2]; } p_env->is_dao = true; cdio_debug ("DAO%c tag detected, track format %d, mode %x\n", opcode==DAOX_ID ? 'X': 'I', p_env->dtyp, disc_mode); switch (p_env->dtyp) { case 0: /* Mode 1 */ track_format = TRACK_FORMAT_DATA; p_env->disc_mode = CDIO_DISC_MODE_CD_DATA; break; case 2: /* Mode 2 form 1 */ disc_mode = 0; track_format = TRACK_FORMAT_XA; p_env->disc_mode = CDIO_DISC_MODE_CD_XA; break; case 3: /* Mode 2 */ track_format = TRACK_FORMAT_XA; p_env->disc_mode = CDIO_DISC_MODE_CD_XA; /* ?? */ break; case 0x6: /* Mode2 form mix */ track_format = TRACK_FORMAT_XA; p_env->disc_mode = CDIO_DISC_MODE_CD_MIXED; break; case 0x20: /* ??? Mode2 form 2, Mode2 raw?? */ track_format = TRACK_FORMAT_XA; p_env->disc_mode = CDIO_DISC_MODE_CD_XA; /* ??. */ break; case 0x7: track_format = TRACK_FORMAT_AUDIO; p_env->disc_mode = CDIO_DISC_MODE_CD_DA; break; default: cdio_log (log_level, "Unknown track format %x\n", p_env->dtyp); track_format = TRACK_FORMAT_AUDIO; } if (0 == disc_mode) { for (i=0; i<p_env->gen.i_tracks; i++) { p_env->tocent[i].track_format= track_format; p_env->tocent[i].datastart = 0; p_env->tocent[i].track_green = false; if (TRACK_FORMAT_AUDIO == track_format) { p_env->tocent[i].blocksize = CDIO_CD_FRAMESIZE_RAW; p_env->tocent[i].datasize = CDIO_CD_FRAMESIZE_RAW; p_env->tocent[i].endsize = 0; } else { p_env->tocent[i].datasize = CDIO_CD_FRAMESIZE; p_env->tocent[i].datastart = 0; } } } else if (2 == disc_mode) { for (i=0; i<p_env->gen.i_tracks; i++) { p_env->tocent[i].track_green = true; p_env->tocent[i].track_format= track_format; p_env->tocent[i].datasize = CDIO_CD_FRAMESIZE; if (TRACK_FORMAT_XA == track_format) { p_env->tocent[i].datastart = CDIO_CD_SYNC_SIZE + CDIO_CD_HEADER_SIZE + CDIO_CD_SUBHEADER_SIZE; p_env->tocent[i].endsize = CDIO_CD_SYNC_SIZE + CDIO_CD_ECC_SIZE; } else { p_env->tocent[i].datastart = CDIO_CD_SYNC_SIZE + CDIO_CD_HEADER_SIZE; p_env->tocent[i].endsize = CDIO_CD_EDC_SIZE + CDIO_CD_M1F1_ZERO_SIZE + CDIO_CD_ECC_SIZE; } } } else if (0x20 == disc_mode) { cdio_debug ("Mixed mode CD?\n"); } else { /* Mixed mode CD */ cdio_log (log_level, "Don't know if mode 1, mode 2 or mixed: %x\n", disc_mode); } for (i=0; i<p_env->gen.i_tracks; i++) { if (DAOX_ID == opcode) { _dao_array_common = &_xentries->track_info[i].common; } else { _dao_array_common = &_ientries->track_info[i].common; } p_env->tocent[i].isrc = calloc(1, CDIO_ISRC_SIZE+1); memcpy(p_env->tocent[i].isrc, _dao_array_common->psz_isrc, CDIO_ISRC_SIZE); p_env->tocent[i].isrc[CDIO_ISRC_SIZE] = '\0'; if (p_env->tocent[i].isrc[0]) { cdio_info("nrg isrc has value \"%s\"", p_env->tocent[i].isrc); } if (!p_env->tocent[i].datasize) { continue; } if (DAOX_ID == opcode) { p_env->tocent[i].pregap = (uint64_from_be (_xentries->track_info[i].index0)) / (p_env->tocent[i].datasize); } else { p_env->tocent[i].pregap = (uint32_from_be (_ientries->track_info[i].index0)) / (p_env->tocent[i].datasize); } } break; } case NERO_ID: case NER5_ID: cdio_error ("unexpected nrg magic ID NER%c detected", opcode==NERO_ID ? 'O': '5'); free(footer_buf); return false; case END1_ID: /* "END!" */ cdio_debug ("nrg end tag detected"); break_out = true; break; case ETNF_ID: /* "ETNF" */ { unsigned entries = UINT32_FROM_BE (chunk->len); _etnf_array_t *_entries = (void *) chunk->data; cdio_assert (p_env->mapping == NULL); cdio_assert ( sizeof (_etnf_array_t) == 20 ); cdio_assert ( UINT32_FROM_BE(chunk->len) % sizeof(_etnf_array_t) == 0 ); entries /= sizeof (_etnf_array_t); cdio_debug ("SAO type image (ETNF) detected"); { int idx; for (idx = 0; idx < entries; idx++) { uint32_t _len = UINT32_FROM_BE (_entries[idx].length); uint32_t _start = UINT32_FROM_BE (_entries[idx].start_lsn); uint32_t _start2 = UINT32_FROM_BE (_entries[idx].start); uint32_t track_mode= uint32_from_be (_entries[idx].type); bool track_green = true; track_format_t track_format = TRACK_FORMAT_XA; uint16_t blocksize; switch (track_mode) { case 0: /* Mode 1 */ track_format = TRACK_FORMAT_DATA; track_green = false; /* ?? */ blocksize = CDIO_CD_FRAMESIZE; p_env->disc_mode = CDIO_DISC_MODE_CD_DATA; cdio_debug ("Format DATA, blocksize %u", CDIO_CD_FRAMESIZE); break; case 2: /* Mode 2 form 1 */ track_format = TRACK_FORMAT_XA; track_green = false; /* ?? */ blocksize = CDIO_CD_FRAMESIZE; p_env->disc_mode = CDIO_DISC_MODE_CD_XA; cdio_debug ("Format XA, blocksize %u", CDIO_CD_FRAMESIZE); break; case 3: /* Mode 2 */ track_format = TRACK_FORMAT_XA; track_green = true; blocksize = M2RAW_SECTOR_SIZE; p_env->disc_mode = CDIO_DISC_MODE_CD_XA; /* ?? */ cdio_debug ("Format XA, blocksize %u", M2RAW_SECTOR_SIZE); break; case 06: /* Mode2 form mix */ track_format = TRACK_FORMAT_XA; track_green = true; blocksize = M2RAW_SECTOR_SIZE; p_env->disc_mode = CDIO_DISC_MODE_CD_MIXED; cdio_debug ("Format MIXED CD, blocksize %u", M2RAW_SECTOR_SIZE); break; case 0x20: /* ??? Mode2 form 2, Mode2 raw?? */ track_format = TRACK_FORMAT_XA; track_green = true; blocksize = M2RAW_SECTOR_SIZE; p_env->disc_mode = CDIO_DISC_MODE_CD_XA; /* ??. */ cdio_debug ("Format MIXED CD, blocksize %u", M2RAW_SECTOR_SIZE); break; case 7: track_format = TRACK_FORMAT_AUDIO; track_green = false; blocksize = CDIO_CD_FRAMESIZE_RAW; p_env->disc_mode = CDIO_DISC_MODE_CD_DA; cdio_debug ("Format CD_DA, blocksize %u", CDIO_CD_FRAMESIZE_RAW); break; default: cdio_log (log_level, "Don't know how to handle track mode (%lu)?", (long unsigned int) track_mode); free(footer_buf); return false; } cdio_assert (_len % blocksize == 0); _len /= blocksize; cdio_assert (_start * blocksize == _start2); _start += idx * CDIO_PREGAP_SECTORS; _register_mapping (p_env, _start, _len, _start2, blocksize, track_format, track_green); } } break; } case ETN2_ID: { /* "ETN2", same as above, but with 64bit stuff instead */ unsigned entries = uint32_from_be (chunk->len); _etn2_array_t *_entries = (void *) chunk->data; cdio_assert (p_env->mapping == NULL); cdio_assert (sizeof (_etn2_array_t) == 32); cdio_assert (uint32_from_be (chunk->len) % sizeof (_etn2_array_t) == 0); entries /= sizeof (_etn2_array_t); cdio_debug ("SAO type image (ETN2) detected"); { int idx; for (idx = 0; idx < entries; idx++) { uint32_t _len = uint64_from_be (_entries[idx].length); uint32_t _start = uint32_from_be (_entries[idx].start_lsn); uint32_t _start2 = uint64_from_be (_entries[idx].start); uint32_t track_mode= uint32_from_be (_entries[idx].type); bool track_green = true; track_format_t track_format = TRACK_FORMAT_XA; uint16_t blocksize; switch (track_mode) { case 0: track_format = TRACK_FORMAT_DATA; track_green = false; /* ?? */ blocksize = CDIO_CD_FRAMESIZE; break; case 2: track_format = TRACK_FORMAT_XA; track_green = false; /* ?? */ blocksize = CDIO_CD_FRAMESIZE; break; case 3: track_format = TRACK_FORMAT_XA; track_green = true; blocksize = M2RAW_SECTOR_SIZE; break; case 7: track_format = TRACK_FORMAT_AUDIO; track_green = false; blocksize = CDIO_CD_FRAMESIZE_RAW; break; default: cdio_log (log_level, "Don't know how to handle track mode (%lu)?", (long unsigned int) track_mode); free(footer_buf); return false; } if (_len % blocksize != 0) { cdio_log (log_level, "length is not a multiple of blocksize " "len %lu, size %d, rem %lu", (long unsigned int) _len, blocksize, (long unsigned int) _len % blocksize); if (0 == _len % CDIO_CD_FRAMESIZE) { cdio_log(log_level, "Adjusting blocksize to %d", CDIO_CD_FRAMESIZE); blocksize = CDIO_CD_FRAMESIZE; } else if (0 == _len % M2RAW_SECTOR_SIZE) { cdio_log(log_level, "Adjusting blocksize to %d", M2RAW_SECTOR_SIZE); blocksize = M2RAW_SECTOR_SIZE; } else if (0 == _len % CDIO_CD_FRAMESIZE_RAW) { cdio_log(log_level, "Adjusting blocksize to %d", CDIO_CD_FRAMESIZE_RAW); blocksize = CDIO_CD_FRAMESIZE_RAW; } } _len /= blocksize; if (_start * blocksize != _start2) { cdio_log (log_level, "%lu * %d != %lu", (long unsigned int) _start, blocksize, (long unsigned int) _start2); if (_start * CDIO_CD_FRAMESIZE == _start2) { cdio_log(log_level, "Adjusting blocksize to %d", CDIO_CD_FRAMESIZE); blocksize = CDIO_CD_FRAMESIZE; } else if (_start * M2RAW_SECTOR_SIZE == _start2) { cdio_log(log_level, "Adjusting blocksize to %d", M2RAW_SECTOR_SIZE); blocksize = M2RAW_SECTOR_SIZE; } else if (_start * CDIO_CD_FRAMESIZE_RAW == _start2) { cdio_log(log_level, "Adjusting blocksize to %d", CDIO_CD_FRAMESIZE_RAW); blocksize = CDIO_CD_FRAMESIZE_RAW; } } _start += idx * CDIO_PREGAP_SECTORS; _register_mapping (p_env, _start, _len, _start2, blocksize, track_format, track_green); } } break; } case SINF_ID: { /* "SINF" */ uint32_t _sessions; cdio_assert (UINT32_FROM_BE (chunk->len) == 4); memcpy(&_sessions, chunk->data, 4); cdio_debug ("SINF: %lu sessions", (long unsigned int) UINT32_FROM_BE (_sessions)); } break; case MTYP_ID: { /* "MTYP" */ uint32_t mtyp_be; uint32_t mtyp; cdio_assert (UINT32_FROM_BE (chunk->len) == 4); memcpy(&mtyp_be, chunk->data, 4); mtyp = UINT32_FROM_BE (mtyp_be); cdio_debug ("MTYP: %lu", (long unsigned int) mtyp); if (mtyp != MTYP_AUDIO_CD) { cdio_log (log_level, "Unknown MTYP value: %u", (unsigned int) mtyp); } p_env->mtyp = mtyp; } break; case CDTX_ID: { /* "CD TEXT" */ uint8_t *wdata = (uint8_t *) chunk->data; int len = UINT32_FROM_BE (chunk->len); cdio_assert (len % CDTEXT_LEN_PACK == 0); p_env->gen.cdtext = cdtext_init (); if(0 !=cdtext_data_init (p_env->gen.cdtext, wdata, len)) { cdtext_destroy(p_env->gen.cdtext); free(p_env->gen.cdtext); p_env->gen.cdtext = NULL; } break; } default: cdio_log (log_level, "unknown tag %8.8x seen", (unsigned int) UINT32_FROM_BE (chunk->id)); break; } if (break_out) break; pos += 8; pos += UINT32_FROM_BE (chunk->len); }